DATA SHEE
T
GENERAL PURPOSE CHIP RESISTORS
RC1218
5%, 1%
RoHS compliant & Halogen Free
Product specification – Mar 15, 2010 V.3 Supersedes Date of Mar. 06, 2003
Chip Resistor Surface Mount
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Product specification
2
9
SERIES
RC 1218
Y
YA
AG
GE
EO
O
B
BR
RA
AN
ND
D
o
or
rd
de
er
ri
in
ng
g
c
co
od
de
e
GLOBAL PART NUMBER (PREFERRED)
RC1218 X K - XX XXXX L
(1) (2) (3) (4) (5) (6)
(1) TOLERANCE
F = ±1%
J = ±5% (for Jumper ordering, use code of J)
(2) PACKAGING TYPE
K = Embossed taping reel
(3) TEMPERATURE COEFFICIENT OF RESISTANCE
– = Base on spec
(4) TAPING REEL
07 = 7 inch dia. Reel
(5) RESISTANCE VALUE
There are 2~4 digits indicated the resistor value. Letter R/K/M is decimal point, no need
to mention the last zero after R/K/M, e.g.1K2, not 1K20.
Detailed resistance rules show in table of “Resistance rule of global part number”.
(6) DEFAULT CODE
Letter L is system default code for order only (Note)
ORDERING INFORMATION - GLOBAL PART NUMBER & 12NC
Both part numbers are identified by the series, size, tolerance, packing
type, temperature coefficient, taping reel and resistance value.
SCOPE
This specification describes
RC1218 series chip resistors
with lead-free terminations made
by thick film process.
APPLICATIONS
All general purpose application
FEATURES
Halogen Free Epoxy
RoHS compliant
- Products with lead free
terminations meet RoHS
requirements
- Pb-glass contained in electrodes,
resistor element and glass are
exempted by RoHS
Reducing environmentally
hazardous wastes
High component and equipment
reliability
Saving of PCB space
None forbidden-materials used
in products/production
ORDERING EXAMPLE
The ordering code of a RC1218
chip resistor, value 56 X with
±1% tolerance, supplied in 7-inch
tape reel is: RC1218FK-0756RL.
NOTE
1. All our RSMD products meet RoHS
compliant and Halogen Free. "LFP" of
the internal 2D reel label mentions
"Lead Free Process"
2. On customized label, "LFP" or
specific symbol can be printed
Resistance rule of global part
number
Resistance code rule Example
0R 0R = Jumpe
r
XRXX
(1 to 9.76 Ω)
1R = 1 Ω
1R5 = 1.5 Ω
9R76 = 9.76 Ω
XXRX
(10 to 97.6 Ω)
10R = 10 Ω
97R6 = 97.6 Ω
XXXR
(100 to 976 Ω) 100R = 100 Ω
XKXX
(1 to 9.76 KΩ)
1K = 1,000 Ω
9K76 = 9760 Ω
XMXX
(1 to 9.76 MΩ)
1M = 1,000,000 Ω
9M76= 9,760,000 Ω
Chip Resistor Surface Mount
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Mar 15, 2010 V.3
Product specification
3
9
SERIES
RC 1218
P
PH
HY
YC
CO
OM
MP
P
B
BR
RA
AN
ND
D
o
or
rd
de
er
ri
in
ng
g
c
co
od
de
es
s
Both GLOBAL PART NUMBER (preferred) and 12NC (traditional) codes are acceptable to order Phycomp
brand products.
GLOBAL PART NUMBER (PREFERRED)
For detailed information of GLOBAL PART NUMBER and ordering example, please refer to page 2.
Resistance decade (3) Last digit
0.01 to 0.0976 X 0
0.1 to 0.976 X 7
1 to 9.76 X 8
10 to 97.6 X 9
100 to 976 X 1
1 to 9.76 KX 2
10 to 97.6 KX 3
100 to 976 KX 4
1 to 9.76 MX 5
10 to 97.6 MX 6
Example: 0.02
X = 0200 or 200
0.3 X = 3007 or 307
1
X = 1008 or 108
33 KX = 3303 or 333
10 MX = 1006 or 106
Last digit of 12NC
(1) The resistors have a 12-digit ordering code starting with 2322.
(2) The subsequent 4 or 5 digits indicate the resistor tolerance and
packaging.
(3) The remaining 4 or 3 digits represent the resistance value with the
last digit indicating the multiplier as shown in the table of
“Last digit of 12NC”.
(4) Letter L is system default code for order only (Note)
ORDERING EXAMPLE
The ordering code of a PRC201 resistor, value 56 X with ±1% tolerance,
supplied in tape of 4,000 units per reel is: 232273575609L or
RC1218FK-0756RL.
NOTE
1. All our RSMD products meet RoHS compliant and Halogen Free. "LFP" of the internal 2D reel label mentions "Lead Free Process"
2. On customized label, "LFP" or specific symbol can be printed
12NC CODE
2322 XXX XXXXX L
(1) (2) (3) (4)
EMBOSSED TAPE ON REEL (units) (2)
TYPE/
1218
START
IN (1)
TOL.
(%)
RESISTANCE
RANGE
4,000
PRC201
2322 ±5% 1 to 1 MΩ 735 64xxx
PRC201
2322 ±1% 1 to 1 MΩ 735 7xxxx
Jumper
2322 - 0 Ω 735 90007
Chip Resistor Surface Mount
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Product specification
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9
SERIES
RC 1218
CONSTRUCTION
The resistor is constructed on top
of a high-grade ceramic body.
Internal metal electrodes are added
on each end to make the contacts to
the thick film resistive element. The
composition of the resistive element
is a noble metal imbedded into a
glass and covered by a second glass
to prevent environment influences.
The resistor is laser trimmed to the
rated resistance value. The resistor
is covered with a protective epoxy
coat, finally the two external
terminations (matte tin on Ni-
barrier) are added. See fig.3
DIMENSIONS
TYPE RC1218
L (mm) 3.10 ± 0.10
W (mm) 4.60 ± 0.10
H (mm) 0.55 ± 0.10
I1 (mm) 0.45 ± 0.20
I2 (mm) 0.40 ± 0.20
Table 1
overcoat
Primary glass layer
resistive layer
(Jumper chip is a conductor)
inner electrode
termination(Ni/matte tin)
ceramic substrate
H
I2
YNSC066
overcoat
W
L
I
1
marking layer
O
OU
UT
TL
LI
IN
NE
ES
S
For dimension see Table 1
Fig. 3 Chip resistor outlines
MARKING
RC1218
E-24 series: 3 digits
First two digits for significant figure and 3rd digit for number of zeros
Both E-24 and E-96 series: 4 digits
First three digits for significant figure and 4th digit for number of zeros
For further marking information, please see special data sheet “Chip resistors marking”.
Fig. 2 Value=10 KΩ
Fig. 1 Value=100 Ω
YNSC023
YNSC024
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Product specification
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9
SERIES
RC 1218
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS RC1218 1 W
Operating Temperature Range –55 °C to +155 °C
Maximum Working Voltage 200 V
Maximum Overload Voltage 500 V
Dielectric Withstanding Voltage 500 V
5% (E24) 1 Ω to 1 MΩ
1% (E24/E96) 1 Ω to 1 MΩ
Resistance Range
Zero Ohm Jumper < 0.02 Ω
1 Ω ≤ R ≤ 10 Ω±200 ppm/°C
Temperature Coefficient 10 Ω < R ≤ 1 MΩ±100 ppm/°C
Rated Current 6 A
Jumper Criteria Maximum Current 10 A
FOOTPRINT AND SOLDERING
PROFILES
For recommended footprint and
soldering profiles, please see the
special data sheet “Chip resistors
mounting”.
Table 2
PACKING STYLE AND P
A
CKAGING QUANTITY
PRODUCT TYPE PACKING STYLE REEL DIMENSION QUANTITY PER REEL
RC1218 Embossed taping reel (K) 7" (178 mm) 4,000 units
NOTE
1. For embossed tape and reel specification/dimensions, please see the special data sheet “Chip resistors packing”
Table 3 Packing style and packaging quantity
MLB206_2
70 10055 50
T
amb( C)
o
(%P )
rated
0
0
50
100
155
P
handbook, halfpage
FUNCTIONAL DESCRIPTION
P
PO
OW
WE
ER
R
R
RA
AT
TI
IN
NG
G
RC1218 rated power at 70°C is 1 W
RATED VOLTAGE
The DC or AC (rms) continuous working voltage
corresponding to the rated power is determined by
the following formula:
V=√(P X R)
or max. working voltage whichever is less
Where
V=Continuous rated DC or
AC (rms) working voltage (V)
P=Rated power (W)
R=Resistance value (X)
Fig. 4 Maximum dissipation (P) in percentage of rated power as a
function of the operating ambient temperature (Tamb)
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Product specification
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9
SERIES
RC 1218
TESTS AND REQUIREMENTS
TEST TEST METHOD PROCEDURE REQUIREMENTS
At +25/–55 °C and +25/+125 °C Temperature
Coefficient of
Resistance
(T.C.R.)
IEC 60115-1 4.8
Formula:
T.C.R= ------------------------- × 106 (ppm/°C)
Where
t1=+25 °C or specified room temperature
t2=–55 °C or +125 °C test temperature
R1=resistance at reference temperature in ohms
R2=resistance at test temperature in ohms
Refer to table 2
Life/Endurance IEC 60115-1 4.25.1
At 70±5 °C for 1,000 hours, RCWV applied for
1.5 hours on, 0.5 hour off, still air required
±(1.0%+0.05 Ω) for 1% tol.
±(3.0%+0.05 Ω) for 5% tol.
<100 mΩ for Jumper
High
Temperature
Exposure/
Endurance at
Upper Category
Temperature
IEC 60068-2-2 1,000 hours at 155±5 °C, unpowered ±(1.0%+0.05 Ω) for 1% tol.
±(2.0%+0.05 Ω) for 5% tol.
<50 mΩ for Jumper
Moisture
Resistance
MIL-STD-202G Method-106G Each temperature / humidity cycle is defined at 8
hours, 3 cycles / 24 hours for 10d. with 25 °C /
65 °C 95% R.H, without steps 7a & 7b,
unpowered
Parts mounted on test-boards, without
condensation on parts
Measurement at 24±2 hours after test conclusion
±(0.5%+0.05 Ω) for 1% tol.
±(2.0%+0.05 Ω) for 5% tol.
<100 mΩ for Jumper
Thermal Shock MIL-STD-202G Method-107G -55/+125 °C
Number of cycles required is 300. Devices
unmounted
Maximum transfer time is 20 seconds. Dwell time
is 15 minutes. Air – Air
±(0.5%+0.05 Ω) for 1% tol.
±(1%+0.05 Ω) for 5% tol.
<50 mΩ for Jumper
Short Time
Overload
IEC60115-1 4.13 2.5 times of rated voltage or maximum overload
voltage whichever is less for 5 sec at room
temperature
±(1.0%+0.05 Ω) for 1% tol.
±(2.0%+0.05 Ω) for 5% tol.
<50 mΩ for Jumper
No visible damage
Table 4 Test condition, procedure and requirements
R2–R1
R1(t2–t1)
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Product specification
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SERIES
RC 1218
TEST TEST METHOD PROCEDURE REQUIREMENTS
Board Flex/
Bending
IEC 60068-2-21 Chips mounted on a 90mm glass epoxy resin
PCB (FR4)
2 mm bending
Bending time: 60±5 seconds
±(1.0%+0.05 Ω) for 1%, 5% tol.
<50 mΩ for Jumper
No visible damage
Low
Temperature
Operation
IEC 60068-2-1 The resistor shall be subjected to a DC rated
voltage for 1.5 h-on, 0.5 h-off, at -55±3 °C
This constitutes shall be repeated for 96 hours
However the applied voltage shall not exceed
the maximum operating voltage
±(0.5%+0.05 Ω) for 1% tol.
±(1.0%+0.05 Ω) for 5% tol.
No visible damage
Insulation
Resistance
IEC 60115-1 4.6 Rated continuous overload voltage (RCOV)
for 1 minute
Type RC1218
Voltage (DC) 100 V
≥10 GΩ
Dielectric
Withstand
Voltage
IEC 60115-1 4.7 Maximum voltage (Vrms) applied for 1 minute
Type RC1218
Voltage (AC) 500 Vrms
No breakdown or flashover
Resistance to
Solvent
IPC/JEDEC J-STD-020D lsopropylalcohol (C3H7OH) followed by
brushing
No smeared
Noise IEC 60115-1 4.12 Maximum voltage (Vrms) applied Resistors range
V
alue
R < 100 Ω 10 dB
100 Ω ≤ R < 1 KΩ 20 dB
1 KΩ ≤ R < 10 KΩ 30 dB
10 KΩ ≤ R < 100 KΩ40 dB
100 KΩ ≤ R < 1 MΩ46 dB
1 MΩ ≤ R ≤ 22 MΩ48 dB
Humidity
(steady state)
IEC 60115-1 4.37 Steady state for 1000 hours at 40 °C / 95% R.H.
RCWV applied for 1.5 hours on and
0.5 hour off
±(1.0%+0.05 Ω) for 1% tol.
±(2.0%+0.05 Ω) for 5% tol.
<100 mΩ for Jumper
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Product specification
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9
SERIES
RC 1218
TEST TEST METHOD PROCEDURE REQUIREMENTS
Intermittent
Overload
IEC 60115-1 4.39 2.5 times of rated voltage or maximum
overload voltage whichever is less for 1 second
on and 25 seconds off; total 10,000 cycles
±(1.0%+0.05 Ω) for 1% tol.
±(2.0%+0.05 Ω) for 5% tol.
<100 mΩ for Jumper
Solderability
- Wetting
IPC/JEDEC J-STD-002B test B
Electrical Test not required
Magnification 50X
SMD conditions:
1st step: method B, aging 4 hours at 155 °C
dry heat
2nd step: leadfree solder bath at 245±3 °C
Dipping time: 3±0.5 seconds
Well tinned (≥95% covered)
No visible damage
- Leaching IPC/JEDEC J-STD-002B test D Leadfree solder, 260 °C, 30 seconds
immersion time
No visible damage
- Resistance to
Soldering Heat
IEC 60068-2-58 Condition B, no pre-heat of samples
Leadfree solder, 260 °C, 10 seconds
immersion time
Procedure 2 for SMD: devices fluxed and
cleaned with isopropanol
±(0.5%+0.05 Ω) for 1% tol.
±(1.0%+0.05 Ω) for 5% tol.
<50 mΩ for Jumper
No visible damage
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Product specification
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9
SERIES
RC 1218
REVISION HISTORY
“ Yageo reserves all the rights for revising the content of this datasheet without further notification, as long as the products itself are unchanged. Any
product change will be announced by PCN.”
REVISION DATE CHANGE NOTIFICATION DESCRIPTION
Version 3 Mar 15, 2010 - - Test items and methods updated
- Test requirements upgraded
- The statement of "Halogen Free" on the cover added
Version 2 Jul 15, 2008 - - Change to dual brand datasheet that describe RC1218 with
RoHS compliant
- Description of "Halogen Free Epoxy" added
- Define global part number
Version 1 Oct 13, 2004 - - New datasheet for 1218 thick film 1% and 5% with lead-free
terminations
- Replace the 1218 part of pdf files: PRC201_51_17
- Test method and procedure updated
- Taping reel changed from 11" to 7" and quantity per reel from 5K to
4K as well
